Hammer



FIG. 1 is a perspective view of a hammer;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof.

The dotted broken lines illustrate structure or features that form no part of the claimed design.

The dot-dash broken lines illustrate boundaries of the claimed design; the boundaries themselves form no part of the claimed design.

The drawings include surface shading which represents contour, not surface ornamentation. 

CLAIM The ornamental design for a hammer, as shown and described. 